La Marzocco KB90 AV 3-Group – Portafilter Machine with Straight-In for High Throughput
During rush hour, every movement counts. The KB90 is designed for throughput and workflow: the portafilter is no longer twisted in, but pushed straight into the brew group – "Straight In Portafilter". In the 3-group version for businesses with very high throughput.
At Coffee Coaching Club, we are partners of La Marzocco and a coffee roastery in one – we support configuration, installation, training, and service.
What makes the KB90 special
The KB90 is the evolution of the Linea PB for maximum output. The Straight-In portafilter saves steps with every shot and is gentle on the wrist. The Steam-Flush function automatically rinses the brew group with steam assistance – for more cleanliness between shots. Plus, multi-boiler technology, integrated scales, insulated Pro-Touch steam wands, and Drip Prediction. AV stands for Auto-Volumetric: programmable shot volumes per group.
Optionally, the KB90 is available with tall legs, which add 8 cm to the height – practical for large to-go cups.
At a glance
| Type |
Portafilter machine, 3-group |
| Special Feature |
Straight-In portafilter (slide straight in instead of twisting) |
| System |
Multi-boiler with saturated brew groups |
| Control |
AV (Auto-Volumetric), integrated scales, Drip Prediction |
| Cleaning |
Steam Flush (automatic steam-assisted brew group rinsing) |
| Steam |
Pro-Touch steam wands (insulated) |
| Dimensions (H × W × D) |
45 × 105 × 62 cm (optional +8 cm with tall legs) |
| Weight |
101 kg |
Scope of delivery
- 3 double portafilters
- La Marzocco Tamper
- Cleaning agents and blind filter
- Filter baskets 17 g
Installation, delivery, and service
The machine comes without a plug from the factory. For commissioning and on-site warranty services, we recommend the installation package and the lime protection filter installation – both are automatically added to the cart as soon as you add the machine. Availability and delivery will be discussed individually with you after purchase. When you buy a La Marzocco, a barista workshop for your team is included (at one location, up to three team members, German or English), plus Swiss warranty and support. Questions in advance via office@coffeecoachingclub.ch or by phone during business hours; personal consultation in Bern and Zurich.
What goes with it
You can find the right grinder for café operations in the Mahlkönig range, and cleaning products under machine and grinder cleaning. More La Marzocco products are available in the La Marzocco Collection.
Frequently Asked Questions
What is the KB90 3-group suitable for?
For businesses with very high throughput. Three groups and the Straight-In workflow speed up extractions during rush hour.
What is the Straight-In portafilter?
Instead of twisting the portafilter in, you slide it straight into the brew group. This saves steps and is gentle on the wrist.
What does the Steam-Flush function do?
It automatically rinses the brew group with steam assistance, keeping it clean between shots.
Is installation included?
The machine comes without a plug. An installation package and lime protection filter are recommended and automatically added to the cart.
Roastery Tip
With three groups in continuous operation, consistency counts – in water, grind, and bean. As a roastery, we supply freshly roasted beans for your business and advise on the appropriate grinder setup. Talk to us. This is our recommendation, one of many.
